Very very very hard you cannot get hold of them at any moment

They DO NOT always return emails when you ask for help with their products and then will only give you a partial refund EVEN THO Their EMAIL TO YOU SAYS YOU HAVE 30 DAYS TO GET A REFUND!
The customer service person MILI told me it is up to her to decide how much of a refund I would receive, she only gave a partial one, even tho their software never worked. She blamed for not calling for a refund earlier, told her that I had emailed their company earlier asking and waiting for help but never heard from them. She partial refund or NO REFUND!